CALCULATION OF BRANCHING FRACTION AND CP VIOLATION IN B- ? Ds-D0 DECAY

被引：1
|
作者：
Mohammadi, Behnam [1 ]
Amirkhanlou, Elnaz [1 ]
机构：
[1] Urmia Univ, Dept Phys, Orumiyeh, Iran
来源：
ACTA PHYSICA POLONICA B | 2022年 / 53卷 / 10期
关键词：
D O I：
10.5506/APhysPolB.53.10-A2
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The most precise measurement of the CP asymmetry in the B- -> Ds- D0 decay has been reported by the LHCb Collaboration with the value of (-0.4 +/- 0.5 +/- 0.5)%. In this study, the CP violation in the B- -> Ds- D0 decay has been calculated under the factorization approach. This decay mode includes the current-current tree, and penguin diagrams and their amplitudes are considered separately. In each of the tree and penguin amplitudes, the strong and weak phases have been introduced. The CP asymmetry has been calculated in this work to be (-0.35 +/- 0.03)%. Finally, from the sum of the amplitudes, we have calculated the total amplitude and obtained comparable results with the experimental value for the branching ratio of B- -> Ds- D0 decay.
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